Flexible car-wheel.



M. MAGINN.

v FLEXIBLE GAR WHEEL. APPLICATION FILED JULY 15, 1907.

RENEWED NOV. 5, 1910.

Patented J an. 17', 1911.

2 SHBE TSSHEET l.

INVENTUIV.

eeaei'z. I

ares; eraser MADISON MAGINN, OF CHICAGO, ILLINOIS.

rLExisLn can-Wanna citizen of the United States, residing at Chicage, in the county of Cool; and State of Illinois, have invented anew and useful l lexib le Car-Wheel, of which the following is a specification. t

My invention relates to .traction wheels employed in thesupport and transportation of railway cars, and the like, .cable to steam, electric,

and is' applistreet or other cars in which car wheels are used. is built up in sections, and these sections are secured togeth'er by bolts or rivets, for the purposcsof constructing a flexible car ivheeL. .And the objects of my 'impmve- :nents are: first; to provideways and means 111 a'fiex'ible car wheel,-so that when sugh wheels strike any uneven obstructions of or ings. Fourth;

' ployed and illustrated wheel. of a flexibleear upon the rails,' of a railway track, such jolt or blows will be partly or entirely-taken up by the, flexible car wheel. Second; to provideiways. and means in flexible car wheels, that when applied'tothe truck of a railway car,

such car will ride smoothly over the rallway track. Third; to provide ways. and means in a flexible car wheel, that such wheels will. prevent the noise nowattendant to railway cars by the constant jolting over the rail joints,.switehes, and railway cross to provide ways d n-eans ina flexible carwheel, and its 2 icatio'n to car trucks, that the said flexible car wheels receive the jar or blow first, and reduce said .blow and jar to aminimum, reaching the journal boxes of the, truck, thus savingthe bearing brasses from the ordinary heavy blowsthat they now receive and have tosustai'mand relieve. the wear on the road-bed,"rails, bridges, "'etcL, as'well as the, rolling stock, all at one and the-same time.

Fifth; to provide ways and means in a fiexible car wheel, for prod-iicing a solid like car wheel, when the flexible 'inaterial of the wheel. becomes overloaded, I atta'inhthese objects by the, mechanism and means emthe accompanying drawings, in-which; i

Figure 1. is a plan viewof the face of a flexible carlwheel. Fi 2. is a lan view, part sectional, of the race of a exibleear Fig, 3. is a plan view er the, face wheel, illustratinga modification of a driving flexible ear wheel for motor carsi. Fig; 4..is an edge View, part sectional, 'of a fle'xib1e car wheel.

This wheel 7 before will be noiseless, I

. on one side,

throughout the several views.

in thedrawings the letter A, represents the rail flange portionof the-car wheel; A

is the tread, or that portion of a car wheel that rests or rolls upon the top surface of a railway rail tending ilan 'e, which is also a part of the flange A, and the tread A; in other words, A, A and A, in this construction, is prei erahly all in one piece. e i

15, represents the hub portion of the car wheel, and is provided witha bore B, for its attachment to the car axle, this hub portion is made with B encircling-the entire hub, as shown in all the figures in the drawings; this extension B is also provided with openings B passing all the way through the hub extension, and its functions will be explained further on.

The letter C, represents a follower l which is secured to the flange portion A3,.by bolts 1*, or rivets, as desired; The

letter D, represents a ring of, flexiblemaany suitable character for this purterial, of

pose. I have illustrated a specially prepared rubber and fibrous material for this "construction; as thespace prepared in this design is quite large, for somepurposes,

; A is a lower side interior ex- 'lfiatented Jan 1'3, 1913i; Renewed November 5,1910. Serial n6. eaosso.

Similar letters refer to similar parts an annular extension sprmgs'may, be employed, m lieu of other material having flexible qualities. And for I some requirements this space D, may be filled with asphalt; a the parts emunerated, together as illustrated perform 'evcry' function g of a flexible car wheel. 5

When itis required or necessary to construct a flexible ear wheel, that in addition prepare a ring E, of vulal adapted and put canized asbestos,or v sound conducting material, and shape it to fit the sides of the extension part of the hub B and place a ring of construction having and described,- will straw board, or any non this material upon both sides of the extension B as shown in section, Fig. 4,, atlEE. To prevent the wearing away of the vulcanized asbestos, or'

the non-soundconducting material, by the liexible movement of-theouter portion of the wheel, I provide a thin sheet steel wearing plate G, and shape'it to cover the'outer surface of thevulcanized asbestos, and place this wearing plate G, over the vulcanized asbestos, and nextto the follower plate C,

and next to the extension flange A upon the other side, as shown-in section (See both sides of hub extension B r I I v Having described the several parts: of its construction,- and the placing together of these several parts,"ts -'modua opemmh is as Q follows: Take the flanged portion A, A A,

after boringand turning its several sur aces as desired, then place it ufpon a suitableagainst sald :frame, thus leaving the largest frame or table, with the ange side A opening uppermost, next/prepare the hub portion B, as showniin section Fig. 4, and place this within the'oenter ofthe opening of the flanged portionA,-A. ,'A after plac- --ing the part B, as shown in Figs. 2,.and 4,

' next prepare-a rin of flexible material, D,

and'place this in t e-prpared opening be tween the outer edge of the hub extension flange portion A, as shown in 'section'Fig. 4, edgeiview in Fig, 2, and by dotted lines D,

, "flexib e part follower plate any uneven obstruction the wheels B ,,and theinner wall surface of the outer in Fi s. Land 3. Now havingplaeed inthe D- as re uired, next prepare a (5, bore and-facedolf smooth upon the inside and both edges, as shown in i place-this plate in secure thesame by olts or rivetsF, after which place in the] stay-and compression bolts J, and the-flexi- Having pressed the usual mam maybe brought to'bear uponthe axle of the wheel, willbe first trans? ferred to and uponthe'fiexiblematerial D, and thence -through this medium to the flanged ortionofthe wl1eel.l in oar ing this loa al'ongupon the rails of a rail way track,.,. when the carwheels are in motion, may have causes a movement which is to' pass over,

reversed to the above results described as comingjfrom the load upon the axle; in the ease intransit, the uneven obstruction to they wheels 1n. passing over, vls first taken up'by the 'fia'nged" portion and transferred to the flexible ,matel la l, which in. ordinary cases will not affect the equilibrium of 'tlieload or car "to which it mayjbeattached In the more extreme cases, the flexiblematerial in the wheel 'will'tahe off the firstshock or blow greatly reduce. itsgivenfto the wheel, and

--'forc 'e' b rm, reaching the hub, or the axle,

with its brasses, and' journal bearings,

' springs-etc. -It will be noticed that the flexiv Ie'moveinentfojithefian eportion with the hub portionof the-.flexib e wheel, limited tothesize of the circular opening H,be-. tween the-,fiange extensions and uh or- ,tions,- as;shown in'all of the drawings. he I space formedbythe an-nularoipeninvides for the movement axis o portion jwith the-hub 'portion of my The annular shoulders formed upon the hub;

H ro-- the iim wheel.

'nular internal rim shou der formed 11 on the follower plate at its center opening,. ocated upon one side of thewheehanda like annular shoulder formednponth'e center ope'hing of the interior extension flange of the tread portion of m wheel, located upon the other side 'of the w eel, are so constructedoand arranged With reference to each other, as to form the means for producing the result of a solid like wheel of ever in its operation the flexibilityof the flexible material within the wheel becomes overloaded. This arra n ement of devices also provides thefmeans E excess load uplon thewheel, from destroyingor injuring t Y extreme conditions the metal ofthe rim-'por tion. comes in contact direct. with the metal of thehubportion at H; and stops any further movement axially, with thehub portion. It will alsobe noticed that the stay and compression bolts J, which moves with the flange A, by means of the wheels in transihcomin in contactfwith obstructions u on the mi 8, must move indethis provided or,-by.having holes B, through the hub ex endent of t ezhub portion;

a flexible wheel, whnorfpreventing any of the rim portion e flexible material; as under tensionB in which the bolts pass through,

-. large enough in'diameter, southat in no case can the movement be eat-enough to, cause .sion B the bolts J, to strike t e metal in the extenn1- order to nan this wheel to that motorcar vf-lanelectric road -I have in Fig. S y a shown to-meet :this requirement by making the follower plate, and the extension flange Af upon the other side of the wheel, so that they will wheel, in so far. as the meshing operation .is

required, but prevents entirely thepossibilf ity of, the flanged portion rotating, without in the annexed drawings and specifications, has ever before reached such a state of per- Having described forms for its construc tion, and explained the tion, and -..t-he manner of using. the same,

what I claim and desire -'to secure by "Letjters Pate tis:

1. In a flexible car. wheel, the *eombina? tion, of a central hub rim portion, arranged -cess or opening between said hub portion 3, a-modification of the devices emepressions -lli, in the hub portion'bf the wheel, and. corresponding extensions L, upon .105"

operate like the teeth of a gear V the hub portion following in the'unison 'reto li y-invention. and employed-for v 1.15 awarefthat the combination for a flexible actual experiments, asdesigned-and set fort 1;

o I I I fection a's'I havefeombined In my invent on.

natureof my inven v portion, and an outer,

with an annular-re and said run portion, flexible material, arranged in said annular recess, non-sound conducting material, arranged upon the sides of the flexible car wheel, substantially as and for the purposes specified.

2. In a flexible car wheel, the combination, of a hub section, and a rim section, flexible .material, interposed between said sections, non-sound conducting material,

flexible or otherwise, arranged about the sides of the wheel, wearing plates, protecting the non-sound conducting materiahsubstantially as and for the purposes specified.

3. In a flexible car wheel, the combination, of a hub section, and a rim section, flexible material, interposed between said sections, a side or flange extension of the formed upon the hub section, for driving and operating the rim section, in unison with the hub sect-ion, independent of the flexible material, substantially as and for the purposes specified.

5. In a flexible car wheel, the combination, of a hub section, and a rim section,

flexible material interposed between saidv sections, a. follower plate, provided with a contact bearing surface, engaging with the hub section, for supporting the outer rim section, when any excess load or strain is applied to the wheel, forming a solid like wheel under these conditions, substantially as and for the purposes specified.

(3. In a flexible car wheel, the combinw tion, of ahub section, and a rim section, flexible material interposed between said sections, non-sound conducting material,

arranged upon the sides of the wheel, as a mutfler, and for preventing the noise made by the rim section, in operative contact with the rail, from being transferred tothe hub section, or the body of the car, substantially I as and for the purposes specified.

7. In a flexible car wheel, the combina-' tion. of a hub section, and'a rim section, flexible material interposed between said sections, non-sound conducting material,ar-.

ranged upon the sides of the hub section, wearing plates, arranged to protect the nonsound conducting material, and means for securing the plates and wheel together, substantially. as and for the purposes specified. 8. In a flexible and noiseless car wheel, the combination, of a hub, and an annular extension. forined thereon, a rim, having a side interior extending flange, attached to the tread and rail flange, a follower plate, removably arranged, with said rim,

annularxhub extension and the rim, nonsound conducting material, interposed between the sides of the annular hub extension, and the projecting flanges of the rim, as a mufiler, and for preventing noise from traversing from one section of the Wheel to the other section, substantially as and for the purposes specified.

9. In a noiseless flexible car wheel, the combination, of a hub, arranged with an annular extension thereon, a rim, arranged with a side interior extending flange, attached to the tread and rail flange, a follower plate, arranged in contact with both hub and rim sections, flexible material, interposed between the annular hub extension and thetread rim, non-sound con-. ducting material, interposed between the sides of the hub portion and the rim portion, for the purpose of mufiiing the noise,

Aid

flexible material, interposed between said and to prevent vibration of the metal inthe com osition of the wheel, substantially as and or the purposes specified.

MADISON MA'GINN.

Witnesses:

' WM. E. KYLE, J. E. SnAKnsrnAnn. 

